activity
20042021
most citedThe first observed stellar X-ray flare oscillation: Constraints on the flare loop length and the magnetic field

114 citations · 306 across the 8 of their papers we have counts for

collaborators

8 papers

astro-ph.SR2021

Evolution of Elemental Abundances During B-Class Solar Flares: Soft X-ray Spectral Measurements with Chandrayaan-2 XSM

Biswajit Mondal, Aveek Sarkar, Santosh V. Vadawale +6

The Solar X-ray Spectrometer (XSM) payload onboard Chandrayaan-2 provides disk-integrated solar spectra in the 1-15 keV energy range with an energy resolution of 180 eV (at 5.9 keV…

astro-ph.SR2019★ 20 cited

Solar microflares: a case study on temperatures and the Fe XVIII emission

Urmila Mitra-Kraev, Giulio Del Zanna

In this paper, we discuss the temperature distribution and evolution of a microflare, simultaneously observed by Hinode XRT, EIS, and SDO AIA. We find using EIS lines that during p…

astro-ph2007★ 32 cited

Meridional flow profile measurements with SOHO/MDI

U. Mitra-Kraev, M. J. Thompson

We present meridional flow measurements of the Sun using a novel helioseismic approach for analyzing SOHO/MDI data in order to push the current limits in radial depth. Analyzing th…

astro-ph2007★ 18 cited

Properties of high-degree oscillation modes of the Sun observed with Hinode/SOT

U. Mitra-Kraev, A. G. Kosovichev, T. Sekii

Aims. With the Solar Optical Telescope on Hinode, we investigate the basic properties of high-degree solar oscillations observed at two levels in the solar atmosphere, in the G-ban…

astro-ph2005★ 114 cited

The first observed stellar X-ray flare oscillation: Constraints on the flare loop length and the magnetic field

U. Mitra-Kraev, L. K. Harra, D. R. Williams +1

We present the first X-ray observation of an oscillation during a stellar flare. The flare occurred on the active M-type dwarf AT Mic and was observed with XMM-Newton. The soft X-r…

astro-ph2004

Loop length and magnetic field estimates from oscillations detected during an X-ray flare on AT Mic

U. Mitra-Kraev, L. K. Harra

We analyse oscillations observed in the X-ray light curve of the late-type star AT Mic. The oscillations occurred during flare maximum. We interpret these oscillations as density p…